Human CD4 Recombinant Protein (C-His) (HF998011)

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Overview

Catalog No.	HF998011
Description	Recombinant Human CD4 Protein, C-His (HF998011) expressed in Mammalian Cells, spanning Met1-Trp390. Purity: >90% by SDS-PAGE. Highlights ●His-Tagged — N-terminal 6×His tag for IMAC purification. ●Mammalian Expression — Proper folding and native glycosylation. ●High Purity — >90% purity verified by SDS-PAGE.
Expression system	Mammalian Cells
Accession	P01730
Protein length	Met1-Trp390
Applications	ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Species	Homo sapiens (Human)
Nature	Recombinant
Endotoxin level	Please contact with the lab for this information.
Purity	>90% as determined by SDS-PAGE.
Predicted molecular weight	44.36 kDa
Form	Lyophilized
Storage buffer	Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
Reconstitution	Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet. RECONSTITUTION PROTOCOL 1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature. 2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial. 3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service. 4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down. 5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using. 6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Shipping	In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage	Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Alternate Names	T-cell surface antigen T4/Leu-3, T-cell surface glycoprotein CD4, CD4
Background	T-cell surface glycoprotein CD4 is a ~51 kDa protein. Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class II molecule:peptide complex. The antigens presented by class II peptides are derived from extracellular proteins while class I peptides are derived from cytosolic proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class II presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex.
Note	For research use only.

Images

SDS-PAGE

SDS-PAGE for Recombinant Human CD4 Protein, C-His
Western blot

Detected by Anti-CD4 monoclonal antibody (Catalog No: HF998107)
Western blot

Detected by Anti-CD4 monoclonal antibody (Catalog No: HF998207)
Western blot

Detected by Anti-CD4 monoclonal antibody (Catalog No: HF998036)
Western blot

Detected by Anti-CD4 monoclonal antibody (Catalog No: HY393023)
Bioactivity

Detected by Anti-Human CD4 Antibody (OKT4A) (Catalog No: HF998307) in indirect ELISA
Bioactivity

Detected by Semzuvolimab (Catalog No: HF998086) in indirect ELISA.